Edwaed van winkle



(No Model.) v

E. VAN WINKLE.

BRUSH CYLINDER FOR COTTON GINS. No. 258,618. Patented May'SO, 1882.

. 'ilNrra STATES PATENT OFFICE.

EDWARD VAN WVINKLE, OF ATLANTA, GEORGIA.

BRUSH-CYLINDER FOR COTTON-GINS.

SPECIFICATION forming part of Letters Patent No. 258,618, dated May 30,1882.

Application filed February 8, 1882. (No model.) I

To all whom it may concern:

Be it known that I, EDWARD VAN WINKLE, of Atlanta, in the county ofFulton and State of Georgia, have invented a new and useful Improvementin Brush-Cylinders for Cotton- Gius, which is fully set forth in thefollowing specification, reference being had to the accompanyingdrawings.

This invention, which relates to cotton-gins, consists principally inthe manufacture of rotating brush-cylinders formed with dovetailed ortrapezoidal passages or slots in cross-section, whereby brush-slats of asimilar shape in cross section can be readily and quickly insertedendwise in the slots of the cylinder and retained in position byfrictional contact in contradistinction to fastening means; and thebrush-slats, whenever occasion requires, can be readily and easilyremoved endwise for repairs or the substitution of new brush-slats, aswill be hereinafter more fully set forth and specifically claimed.

Heretofore (see Figure 5 of the drawings) a brush-cylinder for acotton-gin has been constructed by making the heads of two wooden disksglued together in such a manner that the grain of the wood in one piecewas at right angles to the grain in the other, and having in theirperipheries T-shaped slots or grooves into which were fitted endwisebrush-slats of a similar shape in cross-section. This construction of abrush-cylinder is objectionable for several reasons, among which may bestated that the heads, being made of. wood, will not permit of thebrush-slats being driven tightly into their places on account of theweakness of the wood around the slots; also, fastening means-forexample, nails-must be employed for keeping or retaining the brush-slatsin position, and in drawing these nails for the purpose of repairing orchanging the brush-slats the brush heads or disks are liable to be moreor less injured and oftentimes rendered worthless. My improvements aredesigned to obviate ner face. Fig. 4 is a longitudinal sectional view ofa portion of a cylinderbrush, and Fig. 5 is an end view of the oldmethod of fastenin g the brush-slats.

In the annexed drawings, forming a part of this specificatiomthe letterA represents a metallic annular disk or ring, which is composed of thevertical wall 01, provided with a series of perforations, e, for thepassage of fasteningscrews or their equivalents, and the horizontalflange 0 above and connected therewith, and upon the upper surface ofthis horizontal flange 0 are formed the converging walls I) and thefront connecting-walls, a, substantially as seen in Figs. 1 and 4 of thedrawings. These vertical walls I), as well as the walls a, are cast withthe flange c and wall 61, so as to form an integral part of the annulardisk.

The passages or slots (see Fig. 4) have the flange c for their base andthe converging walls I) for their sides, thus constituting dovetailed ortrapezoidal slotsin cross-section. The dovetailed slots or passages areseparated from each other at proper distances to provide for a desirednumber of brush-slats around the circumference of the brush-cylinder andto furnish the necessary strength of metal to the same.

The letter B represents the wooden disks mounted upon the shaft 1), eachof which is turned true, or nearly so, on its periphery, and on one sidehas a. side groove or recess, p, to receive the vertical flanges (l ofthe disks, as seen in Fig. 4 of the drawings. After these metallic ringsare attached to the wooden disks by screws or other equivalent fasteningmeansfor example, bolts-the brush-slats S,which are made of atrapezoidal shape in cross-section, are driven endwise tightly into thedovetailed or trapezoidal-shaped slots of the metallic rings A,substantially as indicated,in which position they are held by frictionalcontact only.

It will be observed by reference to the drawin gs that this constructionand organization of the parts offer resistance to any tendency of thebrush-slats to be thrown outward by centrifugal force caused by therapid rotation of the brush-cylinder; and, also, should it be necessaryat any time to repair any of the brushslats it can be readily and easilyaccomplished by driving the same out endwise.

It is obvious that the head may be construct ed entirely of metal; butIconsider it more desirable to make it of wood and metal, ashereinbefore described.

By this construction and organizationol'the 5 brush'cylinder anyonecompetent to operate a cotton-gin is enabled to repair thebrush-cylinder on the premises with a little expenditure of money andtime.

What I claim as my invention and desire to [O secure by Letters Patent,is-

1. A metallic ring or annnlardisk for a brushcylinder of a cotton-gin,composed of the vertical wall, (I, horizontal flange c, and thedovetailed or trapezoidal slots, substantially as de- 15 scribed.

2. A metallic ring or annular disk, A, for a brush-cylindcrofacotton-gin, having converging walls b b and the walls a,substantially as described.

3. Theimproved brush-cylinder fora cotton 20 gin, consisting essentiallyof a shaft, wooden disks B, the annular rings formed with thetrapezoidal or dovetailed slots, and the brushslats S, formed of atrapezoidal shape, substantiall as shown and described.

EDWARD VAN VVINKLE.

Witnesses:

W. W. BOYD, I. A. SHIEDLS.

